Package weka.knowledgeflow.steps

Class GetDataFromResult

java.lang.Object

weka.knowledgeflow.steps.BaseStep

weka.knowledgeflow.steps.GetDataFromResult

All Implemented Interfaces:

Serializable, BaseStepExtender, Step

@KFStep(name="GetDataFromResult",
        category="Flow",
        toolTipText="Output data stored in the job environment",
        iconPath="weka/gui/knowledgeflow/icons/GetDataFromResult.gif")
public class GetDataFromResult
extends BaseStep

Step that outputs data stored in the job environment

Version:

$Revision: $

Author:

Mark Hall (mhall{[at]}pentaho{[dot]}com)

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
GetDataFromResult()

Method Summary

Modifier and Type	Method	Description
List<String>	getIncomingConnectionTypes()	Get a list of incoming connection types that this step can accept.
List<String>	getOutgoingConnectionTypes()	Get a list of outgoing connection types that this step can produce.
void	processIncoming(Data data)	Process an incoming data payload (if the step accepts incoming connections)
void	start()	Start processing.
void	stepInit()	Initialize the step.

Methods inherited from class weka.knowledgeflow.steps.BaseStep

environmentSubstitute, getCustomEditorForStep, getDefaultSettings, getInteractiveViewers, getInteractiveViewersImpls, getName, getStepManager, globalInfo, isResourceIntensive, isStopRequested, outputStructureForConnectionType, outputStructureForConnectionType, setName, setStepIsResourceIntensive, setStepManager, setStepMustRunSingleThreaded, stepMustRunSingleThreaded, stop

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

GetDataFromResult

public GetDataFromResult()

Method Details

stepInit

public void stepInit()
              throws WekaException

Description copied from interface: Step

Initialize the step.

Throws:

WekaException - if a problem occurs during initialization

start

public void start()
           throws WekaException

Description copied from class: BaseStep

Start processing. Subclasses should override this method if they can act as a start point in a flow.

Specified by:

start in interface BaseStepExtender

Specified by:

start in interface Step

Overrides:

start in class BaseStep

Throws:

WekaException - if a problem occurs

processIncoming

public void processIncoming(Data data)
                     throws WekaException

Description copied from class: BaseStep

Process an incoming data payload (if the step accepts incoming connections)

Specified by:

processIncoming in interface BaseStepExtender

Specified by:

processIncoming in interface Step

Overrides:

processIncoming in class BaseStep

Parameters:

data - the payload to process

Throws:

WekaException - if a problem occurs

getIncomingConnectionTypes

public List<String> getIncomingConnectionTypes()

Description copied from interface: Step

Get a list of incoming connection types that this step can accept. Ideally (and if appropriate), this should take into account the state of the step and any existing incoming connections. E.g. a step might be able to accept one (and only one) incoming batch data connection.

Returns:

a list of incoming connections that this step can accept given its current state

getOutgoingConnectionTypes

public List<String> getOutgoingConnectionTypes()

Description copied from interface: Step

Get a list of outgoing connection types that this step can produce. Ideally (and if appropriate), this should take into account the state of the step and the incoming connections. E.g. depending on what incoming connection is present, a step might be able to produce a trainingSet output, a testSet output or neither, but not both.

Returns:

a list of outgoing connections that this step can produce